Automatically arranges nodes while dragging them.

There is a Context class that represents a space shared by draggable nodes. The Context interface is meant to be the primary externally useful abstraction. Typical usage is demonstrated by index.js.

• construct a context, providing a method for locating the draggable nodes (getNodes)
• call the start method on drag start
• call the move method on drag move
• call the end method on drag end

The context class maintains a series of Maps and methods used for repel and revert logic while dragging. The Maps are not exposed/useful externally (with the exception of the positions Map which has an accessor).

The format of the positions map is:

node ==> {
  id: [node identifier],
  rect: {
    width: [width],
    height: [height],
    top: [top],
    left: [left],
    bottom: [bottom],
    right: [right]
  }
}

• uses es6 via babel transpilation
• airbnb linter rule are applied
• bundle is created via webpack

• the dragging nodes disappear on a page that is scrolled vertically

• add jsdoc
• write tests
• remove getNodes as a dependency from attract, repel, and revert actions
• possibly move actions into Context class directly, eliminating the long argument lists

• clone the repo
• npm install
• npm run build
• view the ui here: http://localhost:8080/dist/index.html
• view the es5 here: http://localhost:8080/js/bundle.js

Shortcut: Just grab bundle.js. Caution, it includes the interact library.